Rockland County cops are investigating whether a mob-style hit attempt on a 70-year-old man in Airmont is linked to the armed robbery of a Nyack millionaire a year ago.

Vincent DeVito, the father-in-law of a known Genovese crime boss, was shot in the head and chest on Sept 21 while working in his yard and is in critical condition in a Suffern hospital.

Clarkstown cops, who along with the FBI and Piermont cops are investigating the June 2002 robbery of Joseph Raso, a millionaire retired beverage distributor, said they are probing the possibility that DeVito was shot because he is linked to the robbery case.

“We are exploring that possibility,” Detective Lt. Charles Delo of the Clarkstown police said yesterday.

“We haven’t found any links between our case and his shooting, but he is a subject of our investigation in the Raso case and we want to look into the possibility that he was shot to keep him quiet.”

Last week, five men were charged with one federal count of robbery and extortion in the attack on Raso, a wealthy trustee of Nyack Hospital.